Nortel DMS-100 Series Maintenance Manual page 639

7 Compare measured voltage to OPM_VOLT_TST_CHG.
If voltage compared to
OPM_VOLT_TST_CHG
is less negative
is equal to or more negative
Note: The OPMs with MTU default OPM_VOLT_TST_CHG = -509 or
-50.9 Vdc for Eagle Picher and Yuasa batteries. The OPMs with LTU
default OPM_VOLT_TST_CHG is offset by OPM_VOLT_TST_LTU
ADJUSTMENT (Default=10) and then truncated. -509+10=-499
Trunc(-499)=-490 or -49 Vdc for Eagle Picher and Yuasa batteries.
8 If the voltage is less negative than OPM_VOLT_TST_CHG, leave the battery
string pair open-circuit and proceed with OPM site tests.
9 If the voltage is equal to or more negative than OPM_VOLT_TST_CHG, the
string can accept a charge. To return the battery string pair to service, type
>BSY bccdvr
and press the Enter key.
10 To return the battery string pair to service, type
>RTS bccdvr
and press the Enter key.
Note: If the open-cirucit test marks the same string failed within the next
2 months, proceed directly to the OPM site tests.
11 To enable the automatic battery rotation and testing, type
>AUDIT ENABLE
and press the Enter key.
12 This procedure is complete.
OPM routine maintenance procedures
DMS-100 Family OPM Maintenance Manual XPM14 and up
Open-circuit test failure
Do
step 8
step 9
13-37
OPM
(end)